﻿using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Data;

namespace Acando.Dynamics.CRM.Silverlight.Library.Converter
{
    public class VisibilityConverter : IValueConverter
    {
        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Boolean invert = false;
            if (parameter is Boolean) invert = (Boolean)parameter;

            if (parameter is String)
            {
                Boolean b;
                if (Boolean.TryParse((String)parameter, out b)) invert = b;
            }

            Boolean visible = value!=null;
            if (value is Boolean) visible = (Boolean)value;
            if (value is String)  visible = !String.IsNullOrEmpty(value as String);            

            if (invert) visible = !visible;

            return visible ? Visibility.Visible : Visibility.Collapsed;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }

        #endregion
    }
}
